Daniel barckdall



(No Model.)

D. BARGKDALL. GAR AXLE BOX. No. 447,271. Patented Feb. 24,1891.

J Q g n A Q A v v J I w UNITED STATES DANIEL BARCKDALL, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF PATENT OFFICE.

TO WVILLIS J. WVOODWARD, OF SAME PLACE.

CAR-AXLE BOX.

SPECIFICATION forming part of Letters Patent No. 447,271, dated February 24, 1891.

Application filed September 10, 1890. Serial No. 364,562. (No model.)

' To all whom it may concern:

Be it known that I, DANIEL BAROKDALL, of Indianapolis, county of Marion, and State of Indiana, have invented certain new and useful Improvements in Oar-Axle Boxes; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like letters refer to like parts.

My invention relates to the construction of car-axle boxes, and is designed to relieve the friction both on the periphery and at the end of the axle and prevent the wearing away of the boxing, and will be understood from the following description.

In the drawings, Figure l is a sectional view through the center of the boxing on the line w 00, Fig. 2. Fig. 2 is a sectional view of the box on the line y y, Fig. 1. Fig. 3 is a View similar to Fig. 2, except that the axle is shown when crowded over, so that the friction-balls are held closely between the end of the axle and the boxing. Fig. 4 is an end view on the line a 2, Fig. 3.

In detail w is a car-wheel which is rigidly mounted on the axle a, having a shoulder s.

b is a boxing having an opening for the axle and provided with a channelway o, of the irregular circular shape shown in Fig. 1, in which areset friction-rolls 1", which are about the length of the axle-bearing, as shown in Fig. 2. These rolls are put into the box through the opening in which the axle enters, and the latter is inserted after the rolls have been put in place.

f are friction-balls, which after the axle-has been inserted are dropped down through an opening 0, made in the top of the box, and fall between the end of the axle and the end of the boxing, as shown in Fig. 2. This opening 0 is closed with a screw or plug to prevent the balls from getting out and dirt or other substance from getting in. These balls are of such size that when the axle is drawn partly out by the action of the wheel the balls will fall down behind the end and pile up and act as a sort of elastic buffer or backing for the end of the axle, (see Fig. 2,) and when the axle is again pushed in the balls will be spread out in a single layer, forming a friction-bearing, as

shown in Fig. 3. The channel-way 0, directly above the axle-opening, is made of a curve of a little larger radius than the axle, so as to allow as many pins as possible to come in contact with the periphery of the axle whenthe latter is in motion, and thus decrease the fric tionand prevent any crushing of the rolls; It will thus be seen, also, that a number of the friction-rolls are simultaneously brought in contact with the axle and not merely upon its top, but also on either side its vertical diameter, acting much as asolid bearingwould do, and this arrangement secures the advantage of an anti-friction device, and also prevents anylateral movement of the axle and the wearing away of the boxings on either side thereof. Directly below the axle is formed a recess '1" in the boxing, and thisallows the dirt, dust, or grease that would otherwise accumulate about the friction-rolls, retarding their ready movement and increasing the friction of the mechanism, to drop down out of the way, from whence it may be readily removed, when desired.

I am aware that axle-boxings have been constructed heretofore wherein the friction has been lessened by means of rolls moving in channels in the boxings, and that the axle has been set in some instances above and in others below, and that single balls have been used at the ends of the axle for easing the bearing, and do not broadly claim the same as my invention; but I am not aware that any axleboxing has been constructed with the improvements hereinbefore mentioned.

hat I claim as my invention, and desire to secure by Letters Patent, is the following:

1. A car-axle boxing 1), provided with an irregular circular-shaped channel 0, an axle opening below, and a recess formed in the boxings and below such axle to receive dirt, friction-rolls inserted and adapted to move in such channel, the latter of such radius above the axle as to secure the contact of the frictionballs above and on either side of the vertical diameter of such axle, whereby lateral movement thereof is prevented, substantially as shown and described.

2. A car-axle boxing I), provided with an irregular circular-shaped channel 0, and an axle-opening below, a recessformed in the boxings below such axle to receive dirt, frictionballs inserted and adapted to move in such channel, the latter of such radius above the axle as to secure the contact of the frictionrolls above and on either side of the vertical diameter of such axle, whereby any lateral movement thereof is prevented, and friction balls confined in the axle-opening between the end of the axle and the inside of the boxing, all combined substantially as shown and described.

3. In a car-truck, a boxing havin g an axleopening, a recess below the axle to receive extraneous matter, an irregular circular channel in such boxing above the axle, friction-rolls inserted in such channel, the latter of such radius above the axle as to allow the frictionrolls to come in contact with the axle above and on either side the vertical diameter of such axle for preventing any lateral movementthereof and the wearing away of the boxing on either side, substantially as shown and described.

4. In a car-truck, aboxin g Z), having an axleopening, an irregular circular channel 0 above such axle-opening, friction-rolls r, inserted therein and disposed so that the rolls' will comein contact with the axle above on either side of the vertical diameter of the axle and prevent lateral movement thereof, an opening 0 in the rear of the boxings, and a series of friction-balls f, inserted therein and adapted to operate as a buffer when the axle is drawn out and as a frictional hearing when the axle is pushed in, preventing the wearing away of the end of the boxing, all combined substantially as shown and described.

In witness whereof I have hereunto set my hand this 6th day of September, 1890.

DANIEL BAROKDALL.

Witnesses:

II. D. NEALY, U. P. JACOBS. 

